I have corneal unspecified opacity. Need a advice for corneal scar treatment? (photo)

today i have visited my doctor and doctor says that i have corneal scar 250 um (scar depth) ,484 um(full thickness of cornea) and he says if i dont want to perform dalk surgery then i can go for prk surgery but about (150 um ) scar depth can removed and 100 um scar depth is left which is less and i can expect a better vision not 100 % i have added photos of reports regarding this matter.so sir i need a advice prk or dalk. or any other solution which has less risk .i will be thankful for answer .